Incentive spirometers can be either flow-oriented or volume-oriented. Flow-oriented models have a chamber with three interconnected columns. The columns contain plastic floats.

When spirometry is unavailable, physicians can use the St. George’s Respiratory Questionnaire score plus peak expiratory flow to screen for COPD, according to data published in American Journal ...

The Spiro PD ("Spiro" stands for spirometer, a device used to measure the volume and flow of air entering and leaving the lungs2 and "PD" stands for personal device), is the first personal ...

Spirometry and peak expiratory flow in the primary care management of COPD Patrick White 1 , 2 Primary Care Respiratory Journal volume 13 , pages 5–8 ( 2004 ) Cite this article ...